Roll-forming machine.



, No. 848,919. I PATENTED APR. 2,1907. P. P. NUNGES'SER & w. E.'HARMON.' I v ROLL FORMING MACHINE. APPLIGATION I'ILED JULY 12. 1906.

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P. P.NUNGESSER @E'WE. HARMON.

ROLL FORMING MACHINE. APPLICATION FILED JULY 12. 1906.

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PHILIP P. N UN GESSER AND WILLIS E. HARMON, OF CLEVELAND, OHIO, AS- SIGN ORS TO THE N UN GESSER ELECTRIC BATTERY CO., OF CLEVELAND, OHIO, A CORPORATION OF OHIO.

ROLL-FORMING MACHINE.

N 0. 848,919. Specification of Letters Patent.

Patented April 2, 1907. Application filed July 12,1906. Serial No. 325,776. a

T0 at whom it may concern:

Be it known that we, PHILIP P. N UNGESSER sheets of zinc or and Hum E. HARMON, citizens of the United States, residing at Cleveland, in the county of Cuyahoga and State of Ohio, have invented certain new and useful Improvements in Roll-Forming Machines and we do declare that the following is a full clear, and exact description of the invention, which will enable others skilled in the art to which it appertains to make and use the same.

Our invention relates to a roll-forming machine; and the invention consists particularly in a machine adapted to form rolls out of sheets or plates of zinc for electric batteries, all substantially as shown and described, and particularly pointed out in the claims.

In the accompanying drawings, Figure 1 is a front elevation of the machine, and Fig. 2 is a rear elevation of the upper part of the machine. Fig. 8 is a vertical sectional elevation of Fig. 1 and Fig. 4 is a side elevation of the machine looking to the left, Fig. 1. Fig. 5 is a somewhat-enlarged detail showing relation of the forming mandrel and rolls, and Fig. 6 is an enlarged sectional elevation showing the mandrel and the forming-roll beneath and associated parts. Fig. 7 is a cross-section of the forming-rolls and fillet, and Fig. 8 is a de tail of the fillet alone adapted to be placed as in Fig. 7. Figs. 9 and 10 are details.

The machine as thus shown is complete in all its details and, as above indicated, is more especially designed for producing cylindrically-shaped rolls or tubes from fiat sheets of zinc plate for dry batteries, but is not necessarily limited to this use.

All parts of the machine are intended to contribute to the one essential function of the machine-viz., to convert flat sheets or plates into rolls or tubes and to clear the machine of l product in the quickest time prac ticable. This is important because a single machine of this design is planned to produce approximately two thousand or more perfect rolls per hour.

to bridge rollers is completed. Then the roll is dis- 0 arged, as hereinafter fully described. The said roller or mandrel B is supported in socalled upper jaw J, while roller O and idler D are supported together on or in lower pivoted jaw F, which is adapted to open and close said rollers in respect to mandrel B, as will now appear. Thus lower j aw Fhas a split tions it of upper jaw J, bolted to cross-head H, supported on vertical guide-rods L at its ends and pressed down, upon by spiral springs Z, confined over the ends of said head on the extremities of said guide-rods L. Another cross-head K is slidably mounted at its ends on said guiderods L and is supported and actuated by posts 2, rigid with the bottom thereof and yoked at their lower ends over rollers 3 on cross-shaft 4, which also passes through the said yokes of said posts or uprights.

Cams M are fixed on counter-shaft N and engage rollers 3 to raise and lower cross-head K at regular operating intervals, and said shaft carries gear a, which is meshed by pinion 0 on drive-shaft O and whereby said cams are rotated and the lower jaw opened and closed successively according to the speed of the machine. The ends of cross-shaft 4, carrying rollers 3, are free in uprights 6 of the main frame to slide up and down therein or may have rollers 5 to facilitate movement, as shown.

A sleeve-shaped roller 7 is mounted on top of cross-head K to engage transversely beneath the lower edges of lower jaw F at or near its middle and raise and lower the same in respect to the upper jaw, said lower jaw being closed when forming of rolls occurs and open when the rolls have been finished and are being ejected from the machine.

To these ends the machine comprises a I The opening and closing action necessarily main frame A, a mandrel or principal roll B, is rapid and the movements of the parts short a lower forming-roller C, and idler-roller D f and brief to do the work with rapidity. working in conjunction with the said man- The f0rming-roll C and idler-roll D are drel and forming-roll. A guide-fillet E of provided with adjustable supports or bearapproximately T shape lies between these ings 9 and set angularly in a depression at several rolls or rollers and serves especially l the front of lower jaw D, Fig. 5, and the up per roll B is provided with a sprocket-wheel 12, engaged with drive-shaft O by sprocketchain 13 and a sprocket-wheel 14 on said shaft, whereby said roll or mandrel is independently driven.

The lower forming-roll C is rotated through a line of mechanism, also from drive-shaft O, comprising sprocket-chain 15, gear-wheel 16, driven therefrom, pinion 17 on shaft G, and a sprocket-chain 18 on the opposite end of said shaft engaged over a sprocket-wheel 19 on the spindle of said roller (1. The roller C and idler D have channels which the guide-fillets E are supported, and said fillets have a curved working surface g, which conforms to the arc of mandrel B and curved sides for engagement in said rollers. The mandrel B is preferably fluted lengthwise to promote the engaging and forming of the plates in the shaping operation. Now, having a flat sheet or plate P to be formed into a tube of one or more convolutions, it is introduced between mandrel B and roller 0 and almost instantly wrapped upon the mandrel ready to be discharged. Then it is to be as quickly removed as possible to make room for another, and so on. To this end the mandrel is provided with a free outer end, so that the roll may be stripped or pushed lengthwise off therefrom, and as each roll is finished the lower jaw F drops suf1iciently to give clearance for the stripping or ejection of the finished roll. This is effected through the cams M and associated mechanism, as above described. The ejector for said roll consists of a forked device or mem ber 20, which straddles roll B from above in this instance and is supported by head 21, slidably carried by a rod 22 and a spring-encircled actuating-rod 23, both of which rods are slidable in a fixed depending portion from cross-head-H. Spring 24 on rod 23 is adapted to contract and cause head 21 and device to kick off the finished roll from mandrel B when said head is released for this purpose. Such release occurs the instant lower jaw F drops, which draws down rod 25, fixed thereto, and pulls down the outer end of dog 26, which normally holds head 21 back, as in Fig. 1. Said dog is pivoted at about its middle and slidably engages head 21 at its inner end, clearing said head as it tilts and freeing the head to be thrown for ward under the impulse of spring 24 within j the limits of guide and stop rod 22. Then upon the ejection of the finished roll from mandrel B the head 21 is thrown back again to waiting position on the rising or closing of lower jaw This is effected by means of crank-lever 27 and link 28 engaging its upper arm with said. head, while the lower arm of said crank-lever is engaged by jaw F and raised. This presses head 21 back to waiting position, as described. Spring 29, engaged at one end with cross-head H and at c at intervals in 1 the other with dog 26, causes said dog to resume engaging position against head 21 when l it is released by rod on the rising of the lower jaw.

The zinc or other plates or sheets P are fed automatically to the rolls over a suitable table by a toothed feeding-disk 30, actuated primarily from lower jaw F and controlled by a link 31, pawl 32, and ratchet-wheel 33 and connecting parts 34 and 35 for transmitting the actuations from jaw F. This or any equivalent feed mechanism for said toothed disk or its equivalent may be adopted for said plates.

The upper cross-head H is adapted to yield against springs 36 to make accommodation for accidental feeding in of two or more plates together instead of one at a time, and an eccentric sleeve 36 is provided in bearing f for the lower jaw to take up any slack that may work into this hinge or pivot.

As herein shown, the toothed feeding-disk 30 projects slightly through a slot in feed table 39, so as to engage the edge of a single plate thereon and carry it forward to be gripped between rolls B and C. Said table is adjustably supported as to elevation from beneath by post 40 and rest 41 therefor adjustable on guide-rod L. A clutch 43 is adapted to engage and disengage driveulley 45 with drive-shaft O and is operated by suitable pedal mechanism.

What we claim is 1. In a machine for forming rolls out of sheet metal, a rotatable mandrel and avertically-yielding support therefor, a pivoted lower jaw and thereon arranged bedevlces neath said mandrel and adapted to cooperate therewith in shaping the roll.

2. In a roll-forming machine, an upper jaw and a lower jaw pivoted thereon, a vertically-yieldable rotatable mandrel on the upper jaw and forming mechanism on the lower jaw beneath said mandrel comprising rolls and a fillet between said rolls, and means engaging said lower jaw between its pivot and said rolls to raise and lower the same.

3. In a roll-forming machine, a verticallyslidable upper jaw and springs bearing down thereon, a mandrel carried by said jaw, a pivoted lower jaw and forming mechanism for the roll on the free end of said lower jaw, means to feed the stock to said mandrel and forming mechanism, and operating means I for the lower jaw between its pivot and the roll-forming mechanism thereon.

4. In a roll-forming machine, a slidable upper jaw and a pivoted lower jaw, one above the other, a mandrel on the upper jaw and guiding and shaping mechanism on the lower jaw adapted to cooperate with the mandrel in wrapping a roll thereon, means to rotate said mandrel, means to hold the lower relation therewith while jaw up in working the roll is being formed comprising camvertically- ICC actuated arts mid and rear of said lower jaw, and means to strip the finished roll from the mandrel.

5. In a roll-forming machine, a ivoted jaw and cam-controlled mechanism or raising and lowering the same, in combination with a rotatable vertically-yielding mandrel and a support therefor, forming-rolls on the said pivoted jaw beneath said mandrel, and means to thrust the finished roll from the mandrel.

6. In a roll-forming machine, a fixed upper jaw and a rotatable mandrel and fixed support therefor, in combination with a formingroll and an idler adapted to cooperate with said mandrel, a pivoted support for said rolls and means to raise and lower said support and said rolls comprising rotatable cams and a cross-head supported from said cams and en gaging the bottom of said pivoted support.

7. In a roll-forming machine, roll-forming devices comprising a rotatable mandrel and forming-rolls separately supported, said mandrel having a free outer end, in combination with means to strip the mandrel of the finished roll comprising a device adapted to vay between the front engage over the mandrel behind said roll and means to thrust said device forward the roll from the mandrel.

8. In a roll-forming machine, a roll-form ing mechanism comprising suitable jaws, in combination with means to feed the sheet to form the rolls to the machine comprising a toothed disk and actuating mechanism therefor operatively connected with the lower of said jaws.

9. In a roll-forming machine, a mandrel to receive a roll and means to form the roll on said mandrel, in combination with means to feed the roll-forming sheets to the machine comprising a suitable table, a toothed to strip feeding-wheel to engage the plate on said table and a awl-and-ratchet mechanism to rotate said disk at predetermined intervals.

In testimony whereof we sign this specification in the presence of two witnesses.

PHILIP P. NUNGESSER. WILLIS E. HARMON.

Witnesses:

H. G. RoBBINs, F. P. BEEOHER. 

